baber/WOPTO huggingface dataset:
Patent GB-1490968-A (GB)
Title: Colour television decoder
IPC: H04N9/455
Filed: 1974-10-15
Abstract: 1490968 Colour television INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 15 Oct 1974 [22 Oct 1973] 26012/77 Divided out of 1490205 Heading H4F The phase of the reference subcarrier oscillator 10 in a PAL colour television receiver is controlled by controlling a phase shift circuit 8 connected between a burst gate 2 and oscillator 10, such control being carried out in response to a signal derived from the output of an adder 32 receiving the outputs of two R-Y demodulators 4, 31 one of which receives the output of a one line period delay line 30; if the phase of oscillator 10 is correct the outputs of demodulators 4, 31 sum to zero. The output of adder 32 is connected to phase shift circuit 8 via two gates, one, 33, controlled by the output of B-Y demodulator 3 to be open only when the demodulated B-Y signal is positive, and the other, 34, being controlled by half-linefrequency generator 7 to compensate for the PAL- switching. Gate 33 may be replaced by a changeover switch to invert the output of the adder 32 if the B-Y signal is negative, and switch 34 may be omitted if the demodulators 4, 31 receive constant phase reference oscillations. Burst gate 2 is opened to pass only every second colour burst and if it passes the wrong bursts, due to generator 7 operating in the wrong phase, a halfline-frequency selective circuit 17 operates a threshold circuit 36 to correct generator 7. The threshold circuit 36 has a faster speed of operation then the phase correction loop for phase shift circuit 8.
Patent GB-1014043-A (GB)
Title: Isocyanate compositions
Inventor: WILLIAMS DEREK
IPC: C07C263/18
Filed: 1963-07-01
Abstract: Isocyanates are stabilized by incorporating a mixture of a triaryl phosphite and a phenolic antioxidant.  The triaryl phosphite is a compound of a formula (RO)3P, wherein R is an aryl radical which may be substituted in an aromatic nucleus. Examples specified are triphenyl phosphite, tricresyl phosphite, tris-(-p nonylphenyl)phosphite, tri - beta - naphthyl phosphite, tris - (p - chlorophenyl) - phosphite and tris - (p - nitrophenyl) phosphite. The phenolic antioxidant is a phenol having antioxidant properties and in particular an orthosubstituted phenol and phenols carrying substituents, especially alkyl and aralkoxy substituents, in each of the positions orthoto the phenolic hydroxyl group, and bis-phenols corresponding with the following formulae <FORM:1014043/C2/1> ; <FORM:1014043/C2/2> wherein A is an alkylene or alkylidene radical or a sulphur atom, R1 is an alkyl or an alkoxy group and R2, R3 and R4 are hydrogen atoms or alkyl groups and may be the same or different. Specified examples are 2-(a -methylcyclohexyl)-4 : 6 - dimethylphenol, 2 : 6 - di - t - butyl - 4 - methylphenol, bis - (2 - (a  - methylcyclohexyl-5-methyl - 2 - hydroxyphenyl) - methane, bis-(3-t-butyl - 5 - methyl - 2 - hydroxyphenyl) - ethane, bis - (3 - t - butyl - 5 - methyl - 2 - hydroxyphenyl) sulphide and styrenated phenol.  Also suitable are polyhydric phenols which may be substituted in the aromatic nucleus, such as propyl gallate, 4-t-butylcatechol and hydroquinone. Specification 866,396 is referred to.
Patent GB-991427-A (GB)
Title: Improvements in building construction
IPC: E04C1/40
Filed: 1962-07-07
Abstract: 991,427. Building elements. V. JOWETT. July 4, 1963 [July 7, 1962], No. 26147/62. Headings E1J, E1K, and E1V. Building elements are formed from anglesection metal members spaced apart to form a three-dimensional framework, the elements being bolted together to form a rigid wall structure. In Fig. 1, the elements are bolted together via slots a<SP>4</SP> as shown, or by bolts passing through adjacent parallel flanges of members a or a<SP>2</SP> (Figs. 2-4, not shown). Triangularly shaped and half- or quarter-sized elements can be formed, for use in gable ends. A lathed frame C (Fig. 6) may be attached to an element, and a cement plaster interior finish, or a pebble-dash exterior finish applied thereto. A wooden frame D (Fig. 7) may be bolted within the element to support a hardboard sheet, or glazing may be incorporated between slotted glazing bars D<SP>1</SP> (Fig. 8), attached to the element.
Patent GB-1221697-A (GB)
Title: Device for measuring the reaction time of a subject to a visual or acoustic stimulus
IPC: A61B5/16
Filed: 1968-05-31
Abstract: 1,221,697. Reaction timer. C.A.E.M. (COSTRUZIONE APPARECCHIATURE ELETTROMECCANICHE) S.R.L. 31 May, 1968 [13 June, 1967], No. 26151/68. Heading ASK. [Also in Division G3] A device, for measuring the reaction time of a subject to a stimulus comrpises a wheel 1 movable about an axis through a point displaced from its centre of gravity, the reaction time being measured by a pointer 5 against a graduated scale 6, the stimulus being initiated by a timer 29 with an unpredictable delay. The wheel carriers a weight 7, and is initially placed in a position of unstable equilibrium and held 'by engagement of an abutment 17 on the wheel with a latch 16 of a lever 13. On release of the lever 13, by the timer 29 acting via an arm 30 and lever 20, it moves to the left and the wheel is released and begins a clockwise rotational motion. As the lever 13 is released a bell 25 may be struck and a lamp 28 be energised. In reacting to the stimuli, the subject must either depress a pedal 38 or close a switch 40, either action releasing indirectly a lever 8 which carries a braking pad against the wheel. The reaction time is measured in fractions of a second on the scale 6. Should the reaction time be greater than the first half swing, oscillation is prevented by weight 7 contacting an arm 35 which causes release of lever 8 and braking by pad 10. The unpredictable delay between the setting up of the wheel and its release is accomplished by timer 29, e.g. a photographic timer, which is set by a central wheel (52), Fig. 3, (not shown) acting via an eccentric (50), a lever (43), a clutch (46) and a cylinder (45) with an arm (48), by an undeterminable amount. The wheel is reset at this time by rods (42) and (41). Alternatively the central wheel (52) may be reset automatically by a small motor, and the resetting may be in response, automatically, to a coin-operaable mechanism.
Patent GB-1039441-A (GB)
Title: 2ª‰-amino-3ª‡-hydroxy-5ª‡-steroids and the preparation thereof
Inventor: HEWETT COLIN LESLIE
IPC: C07J41/00
Filed: 1962-07-09
Abstract: Novel steroids of the formula <FORM:1039441/C2/1> wherein Y is H2, H(b OH), H(a OH), H(a O acyl) or O; R1 is C1- 6 alkyl or hydroxy-ethyl; R2 is hydrogen, C1- 6 alkyl or hydroxy-ethyl; or NR1R2 is a saturated heterocyclic amino radical; and X is <FORM:1039441/C2/2> in which R3 is hydrogen or C1- 6 alkyl; and Z is H(b OH), H(b O acyl), H(a COCH3), H(b COCH3), H(b CHOHCH3), H(b CHO acyl CH3) or OH(b COCH3), are prepared by reacting the corresponding 2a ,3a -epoxides with the amine NHR1R2.  If the product is to be a 20-keto compound, the starting material may be a 20-ketal which is hydrolysed after the amination reaction.  17-Keto products may be reduced to the 17-ols, or a 17- or 20-keto group in a starting material may be reduced before the amination. Free hydroxy groups in the products may be oxidized or esterified, and some of the 3-esters are also novel.  The products may also be converted into novel acid-addition salts and quaternary ammonium derivatives with alkyl halides.  Examples are given.  2a ,3a -Epoxides used as starting materials are prepared from the corresponding D 2-compounds (prepared, in turn, by heating 3-tosyloxy steroids, prepared from the 3-ols and tosyl chloride, with a base) and per-acids.  5a -pregn-2-en-20b -ol is prepared by reducing 2a -bromo-5a -pregnane-3,20-dione with sodium borohydride and then zinc; or by reduction of 5a -pregn-2-en-20-one. The last-named is also converted to a 20-ketal before epoxidation.  3a ,4a -Epoxy-5a -pregnan-20b -ol is a by-product in the reaction of 2a ,3a -epoxy-5a -pregnan-20b -ol with morpholine.  16a -Ethyl-5a -pregnan-3b -ol-20-one is prepared by hydrogenation of the D 5-compound.  5a -Pregn-2-en-11a -ol-20-one is prepared by hydrolysis of the 11-acetate, and on oxidation gives 5a -pregn-2-ene-11,20-dione, which on ketalization gives the 20-ketal. 16a -Methyl-5a -pregn-2-ene-11,20-dione is prepared by tosylating 16a - methyl - 3b ,11a  - dihydroxy - 5a  - pregnan-20-one 11-acetate (prepared by hydrolysis of the 3,11-diacetate), heating the 3-tosylate with collidine to give 16a -methyl-11a -acetoxy-5a -pregn-2-en-20-one, saponifying this to the 11-ol and oxidizing this. 16a -Methyl-5a -pregnane-3b ,11a -17a -triol-20-one 11-acetate is prepared by partial hydrolysis of the 3b ,11a -diacetate. 16a -Methyl-5a -pregn-2-en-11b -ol-20-one 20-ethylene ketal is prepared by reduction of the 11-one, itself prepared by ketalization.
Patent GB-602190-A (GB)
Title: Improvements in or relating to waste water drain wells or sumps
IPC: E03F5/042
Filed: 1945-10-09
Abstract: 602,190. Waste water drain wells. TELLER, H. Oct. 9, 1945, No. 26289. [Class 33] In a waste water drain well 1 with a hand-operated closing valve 20 arranged within a removable valve housing 3 the outlet side of which has a flange 14 carrying an automatically operating non-return valve 7, the valve housing has a downwardly extending inlet 5 the upper edge of which serves as a seating for the closing valve 20, and above the inlet a conical cover 17 through which passes the spindle 18 of the closing valve and which provides an inclined passage for waste water from the grate 25 to the inlet 5. The housing 3 is secured in position by a clamping bolt 10 with a prismatic head 12 engaging a recess 13 in the well wall and with a nut 11 the lower portion of one end of which is engaged by a semi-circular collar 11a. The spindle 18 passes through a packing box 21 which is protected by a sleeve 27 on the lower end of a hand wheel 23 which is accommodated in a central opening 26 in the grate 25. Alternatively, the sleeve 27 may be separate, or form an upward extension of the cover 17, and the hand wheel may project slightly above the grate.
Patent GB-1162787-A (GB)
Title: Modulator Arrangement
IPC: H04J3/04
Filed: 1968-05-31
Abstract: 1,162,787. Pulse modulation circuits; transistor gating circuits. TELEFONAKTIEBOLAGET L. M. ERICSSON. 31 May, 1968 [1 June, 1967], No. 26367/68. Headings H3T and H4L. In a pulse amplitude modulator the input signal V in  is supplied via a capacitor C a  to the base of a transistor T 1  whose collector is connected to the collector of a transistor T 2  of opposite conductivity, transistor T 2  being blocked when pulses A are applied to its base. The emitter of transistor T 1  is connected to a reference potential O through a high impedance Z E  and the base is connected to the reference potential through a capacitance C B  which is high in relation to the collector-base capacitance of T 1 . A diode D is biased to be non-conducting when transistor T 2  is conducting. When transistor T 2  is blocked the diode D conducts and a current pulse I A  proportional to the amplitude of the input signal passes through the output impedance R M . By an appropriate choice of Z E  and C B  the output impedance of T 1  can be made to vary according to the amplitude of pulses V A  so that the current I A  and hence the voltage U m  become independent of the voltage - P 2  and are linear functions of the input V in .
Patent GB-1415366-A (GB)
Title: Fence
IPC: E01F7/06
Filed: 1973-06-01
Abstract: 1415366 Wire fencing JULIUS KOCH 1 June 1973 [12 June 1972] 26381/73 Heading E1B Wire mesh fencing comprises at least one web 2 of wire mesh secured to a plurality of upright posts 3 by clamping rails 5 and 6 of shallow channel cross-section, the web being held between two such rails or between one rail and a co-operating formation 10 in the post. A multi-layer mesh fence may be built up by superimposing clamping rails 5 and 6. The formation on the post may be a rib or may be omitted altogether. The post may be of circular cross section.
Patent GB-691213-A (GB)
Title: Improvements in or relating to racks for suspending neckties
IPC: A47G25/74
Filed: 1950-10-30
Abstract: 691,213. Tie racks. FRANK, D. R., and FORDES & CO., Ltd. Oct. 29, 1951 [Oct. 30, 1950], No. 26460/50. Class 52(v) A tie rack comprises a U-shaped frame 5 with supporting bars 6, the frame being pivotally mounted on a bracket 9 attached to a plate 1. The frame is held in its horizontal loading position by the engagement of an extension of a cross-bar 6 in a recess 15 in the bracket 9. In a modification, the frame may be held in the horizontal position by leaf springs.
Patent GB-1016812-A (GB)
Title: A bowl for mangles and like textile machines
IPC: D06F67/02
Filed: 1964-06-26
Abstract: 1,016,812. Rollers. KLEINEWEFERS G.m.b.H. June 26, 1964 [Nov. 27, 1963], No. 26484/64. Heading F2U. A roller, particularly for squeezing liquid from textiles, comprises discs 3 of rubber or a non-permeable plastic mounted on a steel shaft 1 between end plates 4. In use, the high pressure in the nip of the rollers forces the discs slightly apart, the resultant capillary action having a considerable effect on liquid in material fed through the rollers, and none of the liquid which is squeezed out of the material in the nip of the rollers is readsorbed.
Patent GB-391364-A (GB)
Title: Improvements in and relating to the manufacture of artificial resin
IPC: C08G8/00
Filed: 1932-09-23
Abstract: Artificial resin-like masses are made by heating a mixture of phenolic substances, vegetable oils, fats or fatty acids, bituminous substances and sulphuric acid until a homogeneous mass is obtained. The phenolic substances may be crude phenols, crude creosote or bituminous or resinous substances containing phenols such as tars, tar oils, tar pitch, tar acid sludges from coal, brown coal, lignite, peat or wood, shale oil products or mineral resins containing phenol, &c.  The vegetable oil or the like may be linseed oil, hempseed oil, wood oil, sunflower oil, rape oil, rape seed oil, and acid-refining residues of vegetable oils and fats.  The sulphuric acid may be in the form of acid sludges from the purification of mineral oils, tars, and tar oils, &c.  Fillers may be added such as wood meal, fibres, asbestos, cement, and metal dust.  The composition may be used as structural material, for moulding articles, and, when molten or dissolved, for impregnating paper, fibrous material, &c.  Examples of suitable ingredients and proportions are (1) 150 gms. of linseed oil, 1000 gms. of brown coal distillation tar, and 150 gms. of sulphuric acid; (2) 400 gms. of crude soya bean oil, 1000 gms. of petroleum acid sludge, and 700 gms. of coal tar; (3) 11,5 gms. of rape seed oil, 77 gms. of petroleum acid sludge, 11,5 gms. of crude creosote, and 10 per cent of oil obtained in the manufacture of cellulose (Tallol).ALSO:Artificial resin-like masses are made by heating a mixture of phenolic substances, vegetable oils, fats or fatty acids, bituminous substances, and sulphuric acid until a homogeneous mass is obtained.  The phenolic substances may be crude phenols, crude creosote or bituminous or resinous substances containing phenols such as tars, tar oils, tar pitch, tar acid sludges from coal, brown coal, lignite, peat or wood, shale-oil products or mineral resins containing phenol &c.  The vegetable oil may be linseed oil, hempseed oil, wood oil, sunflower oil, rape oil, rape seed oil and acid refining residues of vegetable oils and fats.  The sulphuric acid may be in the form of acid sludges from the purification of mineral oils, tar and tar oils, &c.  Fillers may be added such as wood meal, fibres, asbestos, cement, and metal dust.  The composition may be used as structural material, for moulding articles, and, when molten or dissolved, for impregnating paper, fibrous material, &c.
Patent GB-159546-A (GB)
Title: Improvements in or relating to the injection of liquid hydrocarbon to internal combustion engines
IPC: F02D1/00
Filed: 1919-10-29
Abstract: 159,546. Cameron, W. Oct. 29, 1919. Regulating; valve-gear.-Liquid fuel is injected into the working cylinder through a nozzle 6, Fig. 5, controlled by a valve 5 which is opened by the pressure of the liquid fuel in the chamber 4 and is closed by a spring 7. The lift of the valve is limited by an adjustable stop 9. The time at which the liquid fuel in the chamber 4 is put under pressure, and the duration of the pressure period, are determined by the lifting of an interrupter valve 9. Fig. 3, arranged between the injection valve and a pump. The pump has a plurality of plungers and a spring-loaded bypass valve, so that the fuel is delivered to the interrupter at 6* under constant pressure. The valve 9 is balanced as regards the pressure of the fuel, and is opened by gear by which its timing may be varied automatically or by hand. As shown in Fig. 6, the gear comprises a cam 2 which actuates the tappet rod 19, operating the valve 9, through an adjustable rod 3 pivoted to the tappet at 20. The leading face of the cam profile is a circuiar arc struck from the centre 20, so that the adjustment of the cam-bowl 4 does not alter the time at which the valve is lifted, but varies the lift and duration of opening. The varying lift of the interrupter valve does not affect the action of the injection valve, and this form of the gear thus enabies the duration of the injection period to be controlled without altering the timing of the injection or the lift of the injector valve. In a modification of the gear, the cam actuates the valve 9 by means of a lever mounted on an adjustable fulcrum, and the timing may be altered simultaneously with the duration of injection. The invention is applicable to fourstroke cycle and to two-stroke cycle engines. As applied to a four-cylinder four-stroke-cycle engine, there is a separate fuel pump and by-pass valve, for each pair of cylinders and a separate interrrupter, injection valve and cam gear for each cylinder. The pump discharge may be adjusted to suit the fuel consumption, being however always in excess. One lever such as 6, Fig. 6, may control the rods 3 of two adjacent gears. The two control levers for the four cylinders may be connected to the two pump-control levers, and one of the latter may be connected to the air throttle valve lever. In a two-strokecycle engine, the cam 2 may rotate at the same speed as the crank-shaft, or it may be provided with two bosses and be rotated at half-speed.
Patent GB-611098-A (GB)
Title: The manufacture of bile acid derivatives
IPC: C07D295/088
Filed: 1946-09-04
Abstract: Bile acid derivatives of the general formula R-COO(CH2)nNR1R2 where R-COOH represents a keto-bile acid (e.g. dehydrodesoxy- or dehydro-cholic acid, n is a small integer and R1 and R2 are alkyl groups or together form the residue of a heterocyclic group which include the N-atom in a ring are obtained by esterifying a keto bile acid with a dialkylamino (including piperidino and morpholino) alkyl alcohol or halide while removing the water or hydrogen halide formed from the reaction, e.g. by distillation or by carrying the reaction in the presence of a basic substance.  Detailed examples are given.
Patent GB-636010-A (GB)
Title: Improvements in and relating to padders
IPC: D06B1/14
Filed: 1947-10-02
Abstract: 636,010. Coating webs. DUNGLER, J. Oct. 2, 1947, No. 26589. Convention date, Oct. 9, 1946. [Class 140] In a padder comprising a roller 2 rotating in a dye-trough 11 the upper roller 12, or a plurality of rollers, is mounted in supports 15 pivotable about the axis of the roller 2 so that the axes of the rollers 2 and 12 may lie in a vertical or a horizontal plane. The lower end of the supports 15 is provided with a quadrant 20 having helical teeth which mesh with a worm 21 rotatable by a hand wheel 22 to change the position of the upper roller. Rollers for guiding the cloth may be provided in the trough and on the supports 15. When the axes are in a horizontal plane the rollers may form a dye trough as described in Specification 633,006.
Patent GB-260301-A (GB)
Title: Improvements in or relating to landing gear for flying machines
IPC: B64C25/00
Filed: 1926-10-25
Abstract: 260,301. Fritsch, J. Oct. 26, 1925, (Convention date]. Shock-absorbers, applications of; floats, arrangement of; land wheels and skids.-In aircraft provided with supplementary landing gear arranged to come into action only when a landing is made at too steep an angle or when the machine takes off from rough ground, a pair of wheels g or floats is mounted on an axle f carried by means of universal joints by a pair of pivoted arms c the pivoted framework being braced by cables j or by jointed rods. A cable m or a stop at the other side of the pivot keeps the wheels normally out 'of contact with the ground. When an abnormal landing is made the wheels strike the ground and move upwards against the action of an elastic cord i or a spring or fluid dashpot. The movement is limited by an elastic cable l. The cords i or their equivalent may be arranged at the front of the levers e. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of skids in place of the wheels g and to an arrangement comprising a, single supplementary wheel, float, or skid instead of a pair. This subject-matter does not appear in the Specification as accepted.
Patent GB-238748-A (GB)
Title: Improvements in the manufacture of plates or signs for the display of advertisements, pictures or the like
IPC: G09F13/04
Filed: 1924-11-07
Abstract: 238,748. Hiscocks, C. W. Nov. 7, 1924. Illumination, changing advertisements by controlling.- In apparatus for displaying advertisements, pictures, &c. of the type the appearance of which changes according to whether it is illuminated by reflected or transmitted light, the design &c. seen by reflected light being reproduced on the back of the sheet in inverse colouring so as completely to blot it out when viewed by transmitted light, the design &c. to be seen by transmitted light is carried by a second sheet 4 placed in surface contact with the rear of the front sheet 1. The edges of the sheets are bound together to constitute a single element, and the whole may be enclosed between transparent material 7, 8. Specification 197,719 is referred to.